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$ Value

Shares

670

Price

Filed

Mar 2

Insider

Name

Tappin Matthew

Title

President, Software Products

CIK

0001986259

Roles

Officer

Transaction Details

Transaction Date

2026-03-01

Code

M

Table

Non-Derivative

Ownership

Direct

Equity Swap

No

Shares After

2,907

Footnotes

Each restricted stock unit ("RSU") converted into a share of common stock on a one-for-one basis. | Each restricted stock unit ("RSU") and performance stock unit ("PSU") represents a contingent right to receive one share of the Issuer's common stock. | On February 26, 2026, the Reporting Person was granted 25,800 RSUs vesting in three nearly equal annual installments (33%, 33%, 34%), beginning on March 7, 2027. | On February 26, 2026, the Reporting Person was granted 17,200 PSUs, a portion of which vests, if the volume-weighted average price of the Issuer's common stock for any consecutive sixty (60) trading-day period equals or exceeds a stock price target. | On March 1, 2022, the reporting person was granted 2,679 RSUs vesting in four near equal annual installments, the fourth of which vested on March 1, 2026.

Filing Info

Accession No.

0001986259-26-000008

Form Type

4

Issuer CIK

0001758766

Tappin Matthew's History

Date Ticker Type Value
2026-03-11 STEM $4K
2026-03-10 STEM $7K
2026-03-07 STEM M
2026-03-07 STEM M $0
2026-03-04 STEM $2K
2026-03-03 STEM $3K
2026-03-01 STEM M
2026-03-01 STEM M $0
2026-02-26 STEM A $0
2026-02-26 STEM A $0

Other Insiders at STEM (90d)

Insider Bought Sold Last
Laureles Saul R.
Chief Legal Officer
$13K 2026-03-10
Carlson Michael James
President, Managed Services
$23K 2026-03-10
Tappin Matthew
President, Software Products
$21K 2026-03-11
Narayanan Arun
Chief Executive Officer
$57K 2026-03-10
Musfeldt Brian
Chief Financial Officer
2026-02-26